X + 7y = 180 - - - - - a
4x + 2y = 180 - - - - - - b
Multiple a by -2 and b by 7
-2x - 14y = - 360
28x +14y = 1260
Add the above equations:
26x = 900
The value of x is:
x = 900/26 = 34.6°
The value of y can be obtained by replacing the value of x in equation a
34.6 +7y = 180
7y = 180 - 35.6
y = 20.6°
Hope that helps you
Answer:
Step-by-step explanation:
the answer is 3/4 i think but i may be wrong
If it's really a cube, then it can have only one set of dimensions.
Actually, only one dimension ... the length of every edge is the
same number.
The volume of a cube is the cube of its edge length. So the
length of every edge is the cube root of its volume.
But the dimension can sometimes be written in different ways.
Volume = 360 inch³
Edge length = ∛(360 inch³)
= ∛360 inches
= 3 ∛(13 and 1/3) inches
= 4 ∛5.625 inches
= 5 ∛2.88 inches
= 6 ∛(1 and 2/3) inches .
The expected number of defective sample is 0.25
<h3>The probability distribution</h3>
The given parameters are:
- Population, N = 30
- Sample, n = 2
- Selected, x = 4
Start by calculating the defective proportion using:

So, we have:
p = 4/30
p = 0.13
The probability distribution is calculated as:

So, we have:



So, the probability distribution is:
x 0 1 2
P(x) 19/25 23/100 1/100
<h3>The expected number of defective sample</h3>
This is calculated using:

So, we have:
E(x) = 0 * 19/25 + 1 * 23/100 + 2 * 1/100
Evaluate
E(x) = 0.25
Hence, the expected number of defective sample is 0.25
Read more about binomial distribution at:
brainly.com/question/15246027
#SPJ1
Answer:
26 degree
Step-by-step explanation:
We are given that in triangle




By using linear pair angles property


By using triangle angles sum property





Substitute the value
